METHOD OF BIOCHEMICAL ANALYSIS OF SAMPLES OF GRASS ON FLOODPLAIN MEADOW OF SMALL RIVER Russian patent published in 2014 - IPC A01G23/00 G01C13/00 G01N5/00 

FIELD: agriculture.

SUBSTANCE: method comprises the allocation of a plot of a floodplain meadow with the test grass cover. Then, on this plot downstream the small river or its tributary at least three alignments of measurement in the transverse direction are marked. Along each alignment at least three test plots are marked on each side of the small river or its tributary. After marking, the distance is measured from the taken centre of coordinates on one side of the small river or its tributary to the centres of the test plots. In addition, the height of location of the centre of each test plot is measured from the surface of the small river or its tributary. After cutting the grass samples are subjected to tests and based on the results of the tests the patterns of influence of the distance along each alignment and the heights of location of the test plots above the water edge on the biophysical and biochemical characteristics of the grass samples are revealed. After testing the samples of the cut grass of the floodplain meadow for biophysical parameters by weight and drying time, depending on the parameters of the relief in the alignments of measurements the part of the dried samples is taken for digestion and subsequent biochemical analysis by at least three biochemical substances: nitrogen, phosphorus and potassium.

EFFECT: method enables to improve the ability to compare the samples of grass on different accounting plots by the content of nutrient biochemical substances in the form of nitrogen, phosphorus and potassium.

6 cl, 7 dwg, 16 tbl, 1 ex